HP Serviceguard for Linux Version A.11.19 Release Notes, April 2009

Installing the Quorum Server
If you choose to use a Quorum Server rather than a lock LUN for tie-breaking, install
the Quorum Server software on a system outside the cluster. The Quorum Server
software is on the Serviceguard for Linux CD. Updated versions may be available from
http://www.hp.com/go/softwaredepot -> High Availability -> Quorum
Server.
CAUTION: If you are upgrading both the Quorum Server and Serviceguard for Linux,
upgrade the Quorum Server before you upgrade Serviceguard. This is especially
important if you are using an Alternate Quorum Server Subnet (page 25). See “Quorum
Server Upgrade Required if You Are Using an Alternate Address” (page 12).
See the Quorum Server Version A.04.00 Release Notes for a complete description of the
Linux installation and configuration process; you can find them at http://
docs.hp.com -> High Availability -> Quorum Server. There is more
information about the Quorum Server in Managing HP Serviceguard for Linux.
Setting Permissions on the /root/.rhosts File
The /root/.rhosts file must not allow write access by group or other. If /root/
.rhosts file write permission is enabled for other or group, HP Serviceguard for
Linux commands will fail, logging a “Permission denied for user” message. This
situation can arise when the Serviceguard remote security file,$SGCONF/
cmclnodelist, is not used and remote node security is resolved by means of the
.rhosts facility.
NOTE: /etc/cmcluster.conf contains the mappings that resolve the symbolic
references to$SGCONF, $SGROOT, etc., used in these Release Notes. See “Understanding
the Location of Serviceguard Files” in Chapter 5 of the Managing HP Serviceguard for
Linux manual for details.
For more information about configuring security for prospective cluster nodes, as well
as for an existing cluster, see Chapter 5 of Managing HP Serviceguard for Linux.
Uninstalling Serviceguard for Linux
To uninstall Serviceguard, run rpm -e on all the rpms you have installed. For example,
to uninstall the Serviceguard rpm itself:
rpm -e serviceguard-A.11.19.00-0.rhel5.ia64.rpm
48 Serviceguard for Linux Version A.11.19 Release Notes